/* 00  Core — resets and behaviour hooks only. Every visual decision for this
       site lives in the sections below, starting with the design tokens.    */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; }
img, svg, iframe, video { display: block; max-width: 100%; }
img { height: auto; }
iframe { border: 0; }
figure { margin: 0; }
[hidden] { display: none !important; }
:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.skip-link { position: absolute; left: 0.5rem; top: 0.5rem; z-index: 999; transform: translateY(-160%); padding: 0.8rem 1.2rem; background: #000; color: #fff; font-weight: 700; text-decoration: none; }
.skip-link:focus { transform: none; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.nav-toggle .icon-close, .nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }
summary { cursor: pointer; }
summary::-webkit-details-marker { display: none; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; }
.field__error { margin: 0; min-height: 1rem; font-size: 0.82rem; font-weight: 700; color: var(--err); }
.field.is-invalid :where(input, select, textarea) { border-color: var(--err); }
.form-status { min-height: 1.2rem; font-weight: 700; }
.form-status.is-error { color: var(--err); }
.form-status.is-ok { color: var(--ok); }
.img-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.25rem; width: 100%; padding: 1rem; text-align: center; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; line-height: 1.5; }
.img-placeholder b { display: block; font-size: 0.92rem; letter-spacing: 0; text-transform: none; word-break: break-all; }
:target { scroll-margin-top: 120px; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; } }

/* ==========================================================================
   Summit Harbor HVAC — summitharborhvac.xyz
   THE DEVICE: every heading is a question, and every answer opens with one
   short direct sentence set apart from the rest. The page reads as a
   conversation with somebody who already knows what they want to ask.
   01 Tokens · 02 Base · 03 Header (two-tier) · 04 Buttons · 05 Hero
   06 Page heads · 07 Question blocks · 08 Salt-air (signature)
   09 FAQ · 10 Form & contact · 11 Footer · 12 Images
   ========================================================================== */

/* 01 Tokens */
:root {
  --paper: #f6f4ef; --paper-2: #ece9e1; --white: #ffffff;
  --deep: #0d3b38; --deep-2: #14534f; --aqua: #0b8f8c; --aqua-dark: #07615f; --aqua-soft: #dcecea;
  --ink: #17201f; --text: #47524f; --muted: #6b7673; --line: #d9d5cb;
  --focus: #07615f; --err: #a02820;
  --disp: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-sm: 0.92rem; --f-xs: 0.78rem; --f0: clamp(1rem, 0.97rem + 0.16vw, 1.07rem);
  --f1: clamp(1.16rem, 1.05rem + 0.5vw, 1.4rem);
  --f2: clamp(1.75rem, 1.35rem + 1.9vw, 2.75rem); --f3: clamp(2.05rem, 1.5rem + 2.8vw, 3.5rem);
  --r: 3px; --wrap: 1120px; --pad-y: clamp(3rem, 2.3rem + 3.4vw, 5.2rem);
}

/* 02 Base */
body { background: var(--paper); color: var(--text); font-family: var(--sans); font-size: var(--f0); line-height: 1.7; }
h1, h2, h3 { margin: 0 0 0.45em; font-family: var(--disp); color: var(--ink); font-weight: 600; line-height: 1.18; letter-spacing: -0.012em; text-wrap: balance; }
h1 { font-size: var(--f3); }
h2 { font-size: var(--f2); }
h3 { font-size: var(--f1); font-weight: 600; }
p { margin: 0 0 1em; max-width: 66ch; }
p:last-child { margin-bottom: 0; }
a { color: var(--aqua-dark); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
strong, b { color: var(--ink); font-weight: 700; }
ul, ol { margin: 0 0 1em; padding-left: 1.2em; }
.wrap { width: min(100% - 2rem, var(--wrap)); margin-inline: auto; }
.kick { display: block; margin-bottom: 0.6rem; font-family: var(--sans); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--aqua-dark); }
.sec--deep .kick, .phead .kick, .hero .kick { color: #8fd0cc; }
.mt { margin-top: 2.2rem; }

/* 03 Header — a thin utility bar above the masthead; the phone lives in it at every width */
.hd { position: sticky; top: 0; z-index: 30; background: var(--paper); border-bottom: 1px solid var(--line); }
.util { background: var(--deep); color: #b6ccca; }
.util .wrap { display: flex; align-items: center; justify-content: center; gap: 0.5rem; min-height: 40px; font-size: var(--f-sm); }
.util a { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.2rem 0.3rem; color: #fff; font-weight: 700; text-decoration: none; white-space: nowrap; }
.util a svg { width: 15px; height: 15px; color: #8fd0cc; flex: none; }
.util a:hover { color: #8fd0cc; }
.util .sep { color: #4d7a77; }
.util :focus-visible { outline-color: #8fd0cc; }
.mast .wrap { display: flex; align-items: center; gap: 0.8rem; min-height: 62px; }
.sh-logo { display: inline-flex; align-items: center; gap: 0.6rem; margin-right: auto; color: var(--ink); text-decoration: none; }
.sh-logo svg { width: 30px; height: 30px; flex: none; }
.sh-logo b { display: block; font-family: var(--disp); font-size: 1.22rem; font-weight: 600; letter-spacing: -0.014em; color: var(--ink); }
.sh-logo small { display: block; margin-top: -0.12em; font-family: var(--sans); font-size: 0.56rem; font-weight: 700; letter-spacing: 0.17em; text-transform: uppercase; color: var(--aqua-dark); }
.nav-toggle { display: inline-flex; align-items: center; justify-content: center; flex: none; width: 42px; height: 40px; padding: 0; border: 1px solid var(--line); border-radius: var(--r); background: var(--white); color: var(--ink); cursor: pointer; }
.nav-toggle svg { width: 19px; height: 19px; }
.shnav { display: none; }
@media (max-width: 899px) {
  .shnav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 0.3rem 1rem 1.2rem; background: var(--paper); border-bottom: 1px solid var(--line); }
  .shnav.is-open { display: flex; }
  .shnav a { padding: 0.85rem 0.2rem; border-bottom: 1px solid var(--line); color: var(--ink); font-family: var(--disp); font-size: 1.16rem; font-weight: 600; text-decoration: none; }
  .shnav a[aria-current="page"] { color: var(--aqua-dark); }
}
@media (min-width: 900px) {
  .util .wrap { justify-content: flex-end; gap: 0.9rem; }
  .mast .wrap { min-height: 76px; gap: 1.6rem; }
  .nav-toggle { display: none; }
  .shnav { display: flex; gap: 1.5rem; }
  .shnav a { padding: 0.25rem 0; color: var(--text); font-weight: 600; text-decoration: none; border-bottom: 2px solid transparent; white-space: nowrap; }
  .shnav a:hover { color: var(--ink); }
  .shnav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--aqua); }
}
@media (max-width: 400px) { .sh-logo small { display: none; } .util .wrap { gap: 0.3rem; font-size: 0.86rem; } }

/* 04 Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.74rem 1.4rem; border: 0; border-radius: var(--r); background: var(--deep); color: #fff; font: inherit; font-weight: 700; line-height: 1.3; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color 0.18s, color 0.18s; }
.btn:hover { background: var(--aqua-dark); color: #fff; }
.btn svg { width: 1.05em; height: 1.05em; flex: none; }
.btn--aqua { background: var(--aqua); color: #06302f; }
.btn--aqua:hover { background: #8fd0cc; color: #06302f; }
.btn--line { background: transparent; color: var(--deep); box-shadow: inset 0 0 0 2px var(--deep); }
.btn--line:hover { background: var(--deep); color: #fff; }
.btn--paper, .phead a.btn--paper, .sec--deep a.btn--paper, .hero a.btn--paper { background: var(--paper); color: var(--ink); }
.btn--paper:hover, .phead a.btn--paper:hover, .sec--deep a.btn--paper:hover, .hero a.btn--paper:hover { background: #fff; color: var(--ink); }
@media (max-width: 460px) { .btn { white-space: normal; text-align: center; } } /* long labels wrap rather than overflow */
.btns { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1.5rem; }

/* 05 Hero */
.hero { padding-block: clamp(2.8rem, 2.1rem + 3.4vw, 5rem); background: var(--deep); color: #b6ccca; }
.hero h1 { color: #fff; max-width: 15ch; }
.hero p.lede { font-size: var(--f1); line-height: 1.55; color: #dbe7e6; max-width: 50ch; }
.hero :focus-visible { outline-color: #8fd0cc; }

/* 06 Page heads */
.phead { padding-block: clamp(2.2rem, 1.8rem + 2.4vw, 3.6rem); background: var(--deep); color: #b6ccca; }
.phead h1 { color: #fff; max-width: 19ch; }
.phead p { font-size: 1.05rem; max-width: 58ch; }
.phead a:not(.btn) { color: #fff; }
.phead :focus-visible { outline-color: #8fd0cc; }
.crumbs { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0 0 0.9rem; padding: 0; list-style: none; font-size: 0.84rem; }
.crumbs li + li::before { content: "\203a"; margin-right: 0.45rem; color: #8fd0cc; }

/* 07 Question blocks — the device */
.sec { padding-block: var(--pad-y); }
.sec--paper { background: var(--paper); }
.sec--white { background: var(--white); }
.sec--tint { background: var(--paper-2); }
.sec--deep { background: var(--deep); color: #b6ccca; }
.sec--deep h2, .sec--deep h3, .sec--deep b { color: #fff; }
.sec--deep a:not(.btn) { color: #fff; }
.sec--deep :focus-visible { outline-color: #8fd0cc; }

.qa + .qa { margin-top: clamp(2.4rem, 2rem + 2vw, 3.6rem); }
.qa > h2 { padding-bottom: 0.5rem; border-bottom: 1px solid var(--line); max-width: 22ch; }
.sec--deep .qa > h2 { border-bottom-color: rgba(255,255,255,0.28); }
.ans { margin: 1.1rem 0 1.2rem; padding-left: 1.1rem; border-left: 4px solid var(--aqua); font-family: var(--disp); font-size: clamp(1.15rem, 1.02rem + 0.6vw, 1.45rem); line-height: 1.45; color: var(--ink); max-width: 44ch; }
.sec--deep .ans { color: #fff; border-left-color: #8fd0cc; }
.qa__body { columns: 1; }
@media (min-width: 900px) { .qa__body--2 { column-count: 2; column-gap: 3rem; } .qa__body--2 p { max-width: none; } }

.duo { display: grid; gap: 1.5rem; margin-top: 1.5rem; }
@media (min-width: 820px) { .duo { grid-template-columns: repeat(2, 1fr); gap: 2.2rem; } }
.duo article { padding: 1.4rem 1.5rem; background: var(--white); border-top: 3px solid var(--aqua); }
.sec--white .duo article { background: var(--paper); }
.duo h3 { font-size: 1.24rem; }
.duo ul { margin: 0.8rem 0 0; padding-left: 1.05em; font-size: var(--f-sm); }
.duo li { margin-bottom: 0.3rem; }
.checks { margin: 1.2rem 0 0; padding: 0; list-style: none; }
.checks li { position: relative; padding: 0.85rem 0 0.85rem 1.7rem; border-bottom: 1px solid var(--line); }
.sec--deep .checks li { border-bottom-color: rgba(255,255,255,0.24); }
.checks li::before { content: ""; position: absolute; left: 0; top: 1.4rem; width: 9px; height: 9px; border-radius: 50%; background: var(--aqua); }
.checks b { display: block; font-family: var(--disp); font-size: 1.12rem; font-weight: 600; }
.checks span { font-size: var(--f-sm); }
.split { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; gap: 3.2rem; } .split--flip > :first-child { order: 2; } }
.split > * { min-width: 0; }
.split img, .split .img-placeholder { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; border-radius: var(--r); }
.map { display: block; width: 100%; height: clamp(300px, 34vw, 390px); background: var(--paper-2); border-radius: var(--r); }
.where { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 880px) { .where { grid-template-columns: 1fr 1fr; gap: 3rem; } }

/* 08 Salt air (signature) */
.salt { display: grid; gap: 1.8rem; }
@media (min-width: 980px) { .salt { grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; } .salt__set { position: sticky; top: 8.5rem; } }
.salt__set { padding: clamp(1.3rem, 1.1rem + 1.4vw, 2rem); background: var(--white); border-top: 4px solid var(--aqua); }
.salt__set h2 { font-size: 1.3rem; }
.salt__set label.lead { display: block; margin-bottom: 0.4rem; font-weight: 700; color: var(--ink); }
input[type="range"] { width: 100%; height: 30px; margin: 0.3rem 0 0; accent-color: var(--aqua-dark); background: transparent; }
.salt__scale { display: flex; justify-content: space-between; margin-top: 0.1rem; font-size: var(--f-xs); color: var(--muted); }
.salt__read { display: block; margin: 0.9rem 0 0; font-family: var(--disp); font-size: clamp(1.4rem, 1.2rem + 1vw, 2rem); font-weight: 600; color: var(--ink); line-height: 1.2; }
.salt__set fieldset { margin: 1.5rem 0 0; padding: 1.2rem 0 0; border: 0; border-top: 1px solid var(--line); }
.salt__set legend { padding: 0; font-weight: 700; color: var(--ink); }
.toggle { display: flex; gap: 0.45rem; margin-top: 0.55rem; }
.toggle label { position: relative; flex: 1 1 0; }
.toggle input { position: absolute; opacity: 0; }
.toggle span { display: block; padding: 0.55rem 0.5rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--paper); font-size: var(--f-sm); font-weight: 700; text-align: center; cursor: pointer; }
.toggle input:checked + span { background: var(--deep); border-color: var(--deep); color: #fff; }
.toggle input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.salt__out { padding: clamp(1.3rem, 1.1rem + 1.4vw, 2rem); background: var(--deep); color: #b6ccca; }
.salt__out h2 { color: #fff; font-size: 1.1rem; }
.salt__out b { color: #fff; }
.salt__out .band { display: inline-block; margin: 0.3rem 0 0.7rem; padding: 0.2rem 0.7rem; border-radius: 999px; background: #8fd0cc; color: #06302f; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.salt__out .title { display: block; margin-bottom: 0.7rem; font-family: var(--disp); font-size: clamp(1.4rem, 1.2rem + 1.1vw, 2rem); font-weight: 600; color: #fff; line-height: 1.22; }
.salt__out ul { margin: 1rem 0 0; padding-left: 1.15em; font-size: var(--f-sm); }
.salt__out li { margin-bottom: 0.45rem; }
.salt__out .caveat { margin-top: 1.3rem; padding-top: 0.9rem; border-top: 1px solid rgba(255,255,255,0.24); font-size: 0.86rem; color: #8b9f9d; }
.salt__out :focus-visible { outline-color: #8fd0cc; }

/* 09 FAQ */
.faq { display: grid; gap: 0; max-width: 860px; margin-top: 1.4rem; border-top: 1px solid var(--line); }
.shq { border-bottom: 1px solid var(--line); }
.shq summary { display: flex; justify-content: space-between; gap: 1rem; padding: 1.05rem 0; font-family: var(--disp); font-weight: 600; font-size: 1.16rem; color: var(--ink); list-style: none; cursor: pointer; }
.shq summary::after { content: "+"; flex: none; font-family: var(--sans); color: var(--aqua-dark); }
.shq[open] summary::after { content: "\2013"; }
.shq > div { padding: 0 0 1.15rem; }

/* 10 Form & contact */
.form { display: grid; gap: 1rem 1.3rem; margin-top: 1.3rem; }
@media (min-width: 640px) { .form--2col { grid-template-columns: 1fr 1fr; } }
.field--full, .form__end { grid-column: 1 / -1; }
.field label, .picks legend { font-weight: 700; color: var(--ink); font-size: 0.95rem; }
.req { color: var(--err); }
.opt { font-weight: 400; color: var(--muted); }
input[type="text"], input[type="tel"], input[type="email"], input[type="number"], select, textarea { width: 100%; padding: 0.74rem 0.9rem; font: inherit; color: var(--ink); background: var(--white); border: 1px solid #c3bfb4; border-radius: var(--r); }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230d3b38' stroke-width='2.6'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.85rem center; background-size: 15px; padding-right: 2.3rem; }
textarea { min-height: 142px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--deep); }
.picks { margin: 0; padding: 0; border: 0; display: flex; flex-direction: row; flex-wrap: wrap; gap: 0.4rem; }
.picks legend { margin-bottom: 0.45rem; padding: 0; }
.pick { position: relative; }
.pick input { position: absolute; opacity: 0; }
.pick span { display: inline-block; padding: 0.45rem 0.9rem; border: 1px solid #c3bfb4; border-radius: 999px; background: var(--white); font-size: var(--f-sm); cursor: pointer; }
.pick input:checked + span { background: var(--deep); border-color: var(--deep); color: #fff; }
.pick input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.form-note { margin: 0.5rem 0 0; font-size: 0.85rem; color: var(--muted); }
.contact { display: grid; gap: 2.2rem; align-items: start; }
@media (min-width: 920px) { .contact { grid-template-columns: 1.1fr 0.9fr; gap: 3rem; } }
.contact > * { min-width: 0; }
.side { display: grid; gap: 1rem; }
.side__card { padding: 1.3rem 1.45rem; background: var(--white); border-top: 3px solid var(--aqua); }
.side__card h2 { font-size: 1.1rem; }
.side__card .big { display: block; margin: 0.15rem 0 0.35rem; font-family: var(--disp); font-size: 1.6rem; font-weight: 600; color: var(--ink); text-decoration: none; }

/* 11 Footer */
.ft { background: var(--ink); color: #98a3a1; font-size: var(--f-sm); }
.ft a { color: #fff; }
.ft :focus-visible { outline-color: #8fd0cc; }
.ft__row { display: grid; gap: 1.6rem; padding-block: 3rem 1.7rem; }
@media (min-width: 820px) { .ft__row { grid-template-columns: 1.5fr 1fr 1fr; } }
.ft__name { margin: 0 0 0.45rem; font-family: var(--disp); font-size: 1.28rem; font-weight: 600; color: #fff; }
.ft h2 { margin: 0 0 0.55rem; font-family: var(--sans); font-size: 0.73rem; letter-spacing: 0.16em; text-transform: uppercase; color: #8fd0cc; }
.ft ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.32rem; }
.ft__base { padding-block: 0.95rem; border-top: 1px solid rgba(255,255,255,0.15); font-size: 0.81rem; }

/* 12 Images */
.figwide img, .figwide .img-placeholder { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; border-radius: var(--r); }
.img-placeholder { background: var(--paper-2); border: 1px dashed #bdb8ab; color: var(--muted); }
.img-placeholder b { color: var(--ink); overflow-wrap: anywhere; }